可液化地基液化判定標準的研究
林本海 謝定義
- 摘 要
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林本海 （廣東省建筑設計研究院 廣州 510010）謝定義 （西安理工大學 710048）[提要] 通過對室內動三軸試祥和水平場地內土單元體在動荷作用下的液化過程和相應應力變化特性的深入分析，建立了適用于三維條件下可液化地基液化判定的新標準，不僅對液化機理的認識更深入了一步，而且為土體動力反應分析時的準確評判打下了基礎。
[關鍵詞] 可液化地基 瞬態(tài)極限平衡 側向約束 液化判定標準
At first, it is deeply analysed that liquefaction process and its stress-strain characteritics of dynamic triaxialosample and of soil element in horizontal field when dynamic load affect. The secend, a kind of 3 -D liquefaction determination criterion is established based on the principles of limited equilibrium theory and the characteristics of pore water pressure developed in soil mass. Not only these results could help us understand deeply the liquefaction mechanism, but also the criterion could determinate correctly the lique-faction period when analysising dynamic reflecting of soil mass.
Keywords: liquefaction poteritial foundation; instantaneous equilibrium; lateral restraint; liquefaction determination criterion
